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Journal Article

Vectorial vortex generation and phase singularities upon Brewster reflection

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Barczyk,  Rene
Interference Microscopy and Nanooptics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Nechayev,  Sergey
Interference Microscopy and Nanooptics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Butt,  Muhammad Abdullah
Interference Microscopy and Nanooptics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Banzer,  Peter
Interference Microscopy and Nanooptics, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Barczyk, R., Nechayev, S., Butt, M. A., Leuchs, G., & Banzer, P. (2019). Vectorial vortex generation and phase singularities upon Brewster reflection. Physical Review A, 99(6): 063820, pp. 063820-1- 063820-8. doi:10.1103/PhysRevA.99.063820.


Cite as: https://hdl.handle.net/21.11116/0000-0002-D9D6-8
Abstract
We experimentally demonstrate the emergence of a purely azimuthally polarized vectorial vortex beam with a phase singularity upon Brewster reflection of focused circularly polarized light from a dielectric substrate. The effect originates from the polarizing properties of the Fresnel reflection coefficients described in Brewster’s law. An astonishing consequence of this effect is that the reflected
field’s Cartesian components acquire local phase singularities at Brewster’s angle. Our observations are crucial for polarization microscopy and open new avenues for the generation of exotic states of light based on spin-to-orbit coupling, without the need for sophisticated optical elements.